I've created a <DockableWindows> using Desktop Add-Ins / ArcMap Add-in / Type Dockable Window.
everything compiles fine.
<DockableWindow id="ArcMapAddin7_DockableWindow1" class="DockableWindow1+AddinImpl" caption="My Dockable Window" image="Images\DockableWindow1.png">
When I debug the project and use the Add-In Manager / Customize... / Commands I can't find above DockableWindow reference in
either the Categories or Command.
FYI same problem with Add-In menus.